Spring Framework example source code file (WebContentInterceptorTests.java)

This example Spring Framework source code file (WebContentInterceptorTests.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Spring Framework tags/keywords

cache-control, cache-control, exception, expires, expires, list, list, mockhttpservletrequest, mockhttpservletresponse, properties, testcase, util, webcontentinterceptor, webcontentinterceptor, webcontentinterceptortests

The Spring Framework WebContentInterceptorTests.java source code

/*
 * Copyright 2002-2006 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.web.servlet.mvc;

import java.util.List;
import java.util.Properties;

import junit.framework.TestCase;

import org.springframework.mock.web.MockHttpServletRequest;
import org.springframework.mock.web.MockHttpServletResponse;
import org.springframework.test.AssertThrows;
import org.springframework.web.servlet.support.WebContentGenerator;

/**
 * @author Rick Evans
 */
public class WebContentInterceptorTests extends TestCase {

	private MockHttpServletRequest request;

	private MockHttpServletResponse response;


	protected void setUp() throws Exception {
		request = new MockHttpServletRequest();
		request.setMethod(WebContentGenerator.METHOD_GET);
		response = new MockHttpServletResponse();
	}


	public void testPreHandleSetsCacheSecondsOnMatchingRequest() throws Exception {
		WebContentInterceptor interceptor = new WebContentInterceptor();
		interceptor.setCacheSeconds(10);

		interceptor.preHandle(request, response, null);

		List expiresHeaders = response.getHeaders("Expires");
		assertNotNull("'Expires' header not set (must be) : null", expiresHeaders);
		assertTrue("'Expires' header not set (must be) : empty", expiresHeaders.size() > 0);
		List cacheControlHeaders = response.getHeaders("Cache-Control");
		assertNotNull("'Cache-Control' header not set (must be) : null", cacheControlHeaders);
		assertTrue("'Cache-Control' header not set (must be) : empty", cacheControlHeaders.size() > 0);
	}

	public void testPreHandleSetsCacheSecondsOnMatchingRequestWithCustomCacheMapping() throws Exception {
		Properties mappings = new Properties();
		mappings.setProperty("**/*handle.vm", "-1");

		WebContentInterceptor interceptor = new WebContentInterceptor();
		interceptor.setCacheSeconds(10);
		interceptor.setCacheMappings(mappings);
		
		request.setRequestURI("http://localhost:7070/example/adminhandle.vm");
		interceptor.preHandle(request, response, null);

		List expiresHeaders = response.getHeaders("Expires");
		assertTrue("'Expires' header set (must not be) : empty", expiresHeaders.size() == 0);
		List cacheControlHeaders = response.getHeaders("Cache-Control");
		assertTrue("'Cache-Control' header set (must not be) : empty", cacheControlHeaders.size() == 0);

		request.setRequestURI("http://localhost:7070/example/bingo.html");
		interceptor.preHandle(request, response, null);

		expiresHeaders = response.getHeaders("Expires");
		assertNotNull("'Expires' header not set (must be) : null", expiresHeaders);
		assertTrue("'Expires' header not set (must be) : empty", expiresHeaders.size() > 0);
		cacheControlHeaders = response.getHeaders("Cache-Control");
		assertNotNull("'Cache-Control' header not set (must be) : null", cacheControlHeaders);
		assertTrue("'Cache-Control' header not set (must be) : empty", cacheControlHeaders.size() > 0);
	}

	public void testPreHandleSetsCacheSecondsOnMatchingRequestWithNoCaching() throws Exception {
		WebContentInterceptor interceptor = new WebContentInterceptor();
		interceptor.setCacheSeconds(0);

		interceptor.preHandle(request, response, null);

		List expiresHeaders = response.getHeaders("Expires");
		assertNotNull("'Expires' header not set (must be) : null", expiresHeaders);
		assertTrue("'Expires' header not set (must be) : empty", expiresHeaders.size() > 0);
		List cacheControlHeaders = response.getHeaders("Cache-Control");
		assertNotNull("'Cache-Control' header not set (must be) : null", cacheControlHeaders);
		assertTrue("'Cache-Control' header not set (must be) : empty", cacheControlHeaders.size() > 0);
	}

	public void testPreHandleSetsCacheSecondsOnMatchingRequestWithCachingDisabled() throws Exception {
		WebContentInterceptor interceptor = new WebContentInterceptor();
		interceptor.setCacheSeconds(-1);

		interceptor.preHandle(request, response, null);

		List expiresHeaders = response.getHeaders("Expires");
		assertTrue("'Expires' header set (must not be) : empty", expiresHeaders.size() == 0);
		List cacheControlHeaders = response.getHeaders("Cache-Control");
		assertTrue("'Cache-Control' header set (must not be) : empty", cacheControlHeaders.size() == 0);
	}

	public void testSetPathMatcherToNull() throws Exception {
		new AssertThrows(IllegalArgumentException.class) {
			public void test() throws Exception {
				WebContentInterceptor interceptor = new WebContentInterceptor();
				interceptor.setPathMatcher(null);
			}
		}.runTest();
	}

}